Method of welding copper.



UNITED Siilfillll i l Apjiention filed See-oificafioion of Meteors "I on 13 1907. Serialiio. 3-33.30?-

A. BARNES, F \YOROKOCO, llizlbl,.aCHUSETTS.

OF WELDING GGPIPLJR.

Fatentezl fact, Iii-98'1".

To all 107mm if: may concern:

Be it known that l, WiLmrcM A. B9. s, a. the Unitec Series, residing at; Woronoeo, in the eounny of lIampden and State of Mnsseeliusotiis, in: v invented certain new and usefulimprovements 'Zr Welding Copper, of which the following i tion, reference being had. therein to the am. drawing.

My invention relates to an improved flux or Welding compound especially adapted for use in welding copper.

In the practice of n iy invention I provide a flux in which sand, glass, copper filings, bomx, and

nope-Trying -nno ol potassium are employed, and these ingredients are preferably used in the following proportions nznnely, fine quartz sand 2 p: s, pulverized glass :2 puriis, soft copper filings 2 parts, borer: Sports, and cyunicl of po' tzmssium 2 parts, these parts being determined and i1 porLic-ned by weight in order to produce the most lesirable and effectual result. The ingredients are reduced more or less to a powdered state and. thoroughly and effectually mixed, preferably by being placed to get-her in a mortar and ground with a pestle, al though it will be obvious that "various other manners of mixing and pulverizing will produce the same result.

While the ingredients herein named mixed in the dry form, as hereinbelore set; obvious that they may be placed in a, crucible L and heated to a degree of tempemture sullicient Lo reduce to a molten condition and then thoroughly stirred to more completelymix said ingredients. The mi iure may then be allowed to cool mullmriien and, when hardened or fixed it will, oi cm which WUl'llfl ie he mm. such substr: noes. whereupon 1 L inn}; l ing or pounding to a powdered or puli'verim l form.

The pieces of epper to be welded are u'st; propc I shaped and then heated to the require( tempo-refine.

During lire luzuting proi by the for -:goi1 lescribell flux un il White es begin ear on the metal, and as it is then of the proper "olding, it is ha Il11'11Ul(;?(l, the blows being quick resultis obtained. "(1 lls especially be used for welding 5v liile, above stated, 'znyi .pw. odnpted for Welding r= pioer, ii um other metal.

Having thus described my said. inve ion, What I claim as new and desire to secure by Letters fatcnt of Lire United States, is

WZLLIAI'I A... BARNES.

Witnesses Y. W. (,nowsox, C. R. BARBER.

ducted. b grind- 

